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        <h2 id="正则表达式"><a href="#正则表达式" class="headerlink" title="正则表达式"></a>正则表达式</h2><table>
<thead>
<tr>
<th style="text-align:left"></th>
<th style="text-align:left"></th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:left">.</td>
<td style="text-align:left">匹配除换行符以外的任意字符</td>
</tr>
<tr>
<td style="text-align:left">?</td>
<td style="text-align:left">重复0次或1次</td>
</tr>
<tr>
<td style="text-align:left">+</td>
<td style="text-align:left">重复1次或多次</td>
</tr>
<tr>
<td style="text-align:left">*</td>
<td style="text-align:left">重复0次或多次</td>
</tr>
<tr>
<td style="text-align:left">\d</td>
<td style="text-align:left">匹配数字</td>
</tr>
<tr>
<td style="text-align:left">^</td>
<td style="text-align:left">匹配字符串的开始</td>
</tr>
<tr>
<td style="text-align:left">$</td>
<td style="text-align:left">匹配字符串的结束</td>
</tr>
<tr>
<td style="text-align:left">{n}</td>
<td style="text-align:left">重复n次</td>
</tr>
<tr>
<td style="text-align:left">{n,}</td>
<td style="text-align:left">重复n次或更多次</td>
</tr>
<tr>
<td style="text-align:left">[c]</td>
<td style="text-align:left">匹配单个字符c</td>
</tr>
<tr>
<td style="text-align:left">[a-z]</td>
<td style="text-align:left">匹配a-z小写字符的任意一个</td>
</tr>
<tr>
<td style="text-align:left">\/</td>
<td style="text-align:left">转义字符</td>
</tr>
<tr>
<td style="text-align:left">()</td>
<td style="text-align:left">用于匹配括号之间的内容，通过$1、$2调用</td>
</tr>
</tbody>
</table>
<h2 id="examples"><a href="#examples" class="headerlink" title="examples"></a>examples</h2><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line">location /ESB_TEST/ &#123;</span><br><span class="line">    rewrite_log on;</span><br><span class="line">    rewrite ^/ESB_TEST/(.*)$ /esb-mesh/<span class="variable">$1</span> last;</span><br><span class="line">&#125;</span><br><span class="line"><span class="comment"># http://xxx.com/ESB_TEST/xxx/xxx</span></span><br><span class="line"><span class="comment"># 实际访问地址为</span></span><br><span class="line"><span class="comment"># http://xxx.com/esb-mesh/xxx/xxx</span></span><br></pre></td></tr></table></figure>
<h2 id="参数"><a href="#参数" class="headerlink" title="参数"></a>参数</h2><table>
<thead>
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<th style="text-align:left">类型</th>
<th style="text-align:left">作用</th>
</tr>
</thead>
<tbody>
<tr>
<td style="text-align:left">last</td>
<td style="text-align:left">停止rewrite检测,匹配到location后，改写字符串，内部相当于重新发起一次请求，然后进到别的location，执行正常流程。</td>
</tr>
<tr>
<td style="text-align:left">break</td>
<td style="text-align:left">停止rewrite检测,匹配到location后，直接从root目录下寻找改写后的链接资源，找到则返回，找不到则返回404页面未找到</td>
</tr>
<tr>
<td style="text-align:left">redirect</td>
<td style="text-align:left">返回302临时重定向，地址栏会显示跳转后的地址</td>
</tr>
<tr>
<td style="text-align:left">permanent</td>
<td style="text-align:left">返回301永久重定向（缓存，下次访问，自动重定向），地址栏会显示跳转后的地址</td>
</tr>
</tbody>
</table>
<h2 id="redirect与last的区别"><a href="#redirect与last的区别" class="headerlink" title="redirect与last的区别"></a>redirect与last的区别</h2><figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br></pre></td><td class="code"><pre><span class="line">location ~ ^/last &#123;</span><br><span class="line">    <span class="comment">#rewrite ^/last /test/ last;</span></span><br><span class="line">    rewrite ^/last /<span class="built_in">test</span>/ redirect;</span><br><span class="line">&#125;</span><br><span class="line"><span class="comment"># 访问HOST/last/，正常访问，发现url变成HOST/test/。</span></span><br><span class="line"><span class="comment"># last，正常访问，但是url不变。</span></span><br><span class="line"><span class="comment"># redirect，使用curl -vL 192.168.174.132/last/进行测试，</span></span><br><span class="line"><span class="comment">#           发现先请求的/last/，返回302，再请求的HOST/test/。</span></span><br><span class="line"><span class="comment"># last，使用curl -vL 192.168.174.132/last/进行测试，返回200，</span></span><br><span class="line"><span class="comment">#       直接可以获取到内容。</span></span><br></pre></td></tr></table></figure>

      
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